[ASAP] Which of the following anime has best dubbed?

lately, I've been rewatching old animes and some of these, I think that I would like to see in dubbed. but I dont wanna waste my time in looking for the best one. So, here are the animes that I would like to see dubbed. Which one has the best english dubbed?<br><br>1. Attack on Titan<br>2. Black Butler<br>3. Rosario + Vampire<br>4. Tokyo Ghoul<br>5. Beelzebub<br>6. Blue Exorcist<br><br>P.S. - I know that these animes are old. But, I like to see rewatch dubbed because I can focus on something else than just only watching anime.